main.c
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/*
* Copyright (C) 2014 Freie Universität Berlin
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
/**
* @ingroup tests
* @{
*
* @file
* @brief Test application for the LPS331AP pressure sensor
*
* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
*
* @}
*/
#ifndef TEST_LPS331AP_I2C
#error "TEST_LPS331AP_I2C not defined"
#endif
#ifndef TEST_LPS331AP_ADDR
#error "TEST_LPS331AP_ADDR not defined"
#endif
#include <stdio.h>
#include "xtimer.h"
#include "lps331ap.h"
#define RATE LPS331AP_RATE_7HZ
#define SLEEP (250 * 1000U)
int main(void)
{
lps331ap_t dev;
int temp, pres;
int temp_abs, pres_abs;
puts("LPS331AP pressure sensor test application\n");
printf("Initializing LPS331AP sensor at I2C_%i... ", TEST_LPS331AP_I2C);
if (lps331ap_init(&dev, TEST_LPS331AP_I2C, TEST_LPS331AP_ADDR, RATE) == 0) {
puts("[OK]\n");
}
else {
puts("[Failed]");
return 1;
}
while (1) {
pres = lps331ap_read_pres(&dev);
temp = lps331ap_read_temp(&dev);
pres_abs = pres / 1000;
pres -= pres_abs * 1000;
temp_abs = temp / 1000;
temp -= temp_abs * 1000;
printf("Pressure value: %2i.%03i bar - Temperature: %2i.%03i °C\n",
pres_abs, pres, temp_abs, temp);
xtimer_usleep(SLEEP);
}
return 0;
}